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Finding the Fourth Proportional to 670,729.22, 925,605.65 and 384,250.44

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Solution

The fourth proportional to 670,729.22, 925,605.65 and 384,250.44 is: 530,265.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,729.22 : 925,605.65 = 384,250.44 : x
  2. Step 2: Convert to fraction form
    670,729.22/925,605.65 = 384,250.44/x
  3. Step 3: Cross multiply
    670,729.22x = 925,605.65 × 384,250.44
  4. Step 4: Simplify right side
    670,729.22x = 355,664,379,239.61
  5. Step 5: Solve for x
    x = 355,664,379,239.61/670,729.22
  6. Step 6: Final answer
    x = 530,265.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.